1 /* w_gammaf_r.c -- float version of w_gamma_r.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
4
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16 #include <sys/cdefs.h>
17 #if defined(LIBM_SCCS) && !defined(lint)
18 __RCSID("$NetBSD: w_gammaf_r.c,v 1.8 2002/05/26 22:02:01 wiz Exp $");
19 #endif
20
21 /*
22 * wrapper float gammaf_r(float x, int *signgamp)
23 */
24
25 #include "math.h"
26 #include "math_private.h"
27
28 float
gammaf_r(float x,int * signgamp)29 gammaf_r(float x, int *signgamp) /* wrapper lgammaf_r */
30 {
31 #ifdef _IEEE_LIBM
32 return __ieee754_lgammaf_r(x,signgamp);
33 #else
34 float y;
35 y = __ieee754_lgammaf_r(x,signgamp);
36 if(_LIB_VERSION == _IEEE_) return y;
37 if(!finitef(y)&&finitef(x)) {
38 if(floorf(x)==x&&x<=(float)0.0)
39 /* gammaf pole */
40 return (float)__kernel_standard((double)x,(double)x,141);
41 else
42 /* gamma overflow */
43 return (float)__kernel_standard((double)x,(double)x,140);
44 } else
45 return y;
46 #endif
47 }
48